Extension-table.



l. KARISHJ EXTENSION TABLE.

APPLICATION men JULY 13. 1912.

m r 1M @M Z F m @M 1% dfifi'zneddwx M M, wjzZid THE NORRIS PETERS CO PHOTC-LITHO.. WASHINGTDN. D C.

I. KARISH.

EXTENSlON TABLE.

APPLICATION FILED JULY13. 1912.

1,135,115, Patented Apr.13, 1915.

4 SHEETS-SHEET 2.

THE NORRIS PETERS CO. PHoro LlTllou WASHINGTON, D. c

l. KAFHSH.

EXTENSION TABLE.

APPLICATION FILED lULY13. 1912.

1,1 35,1 1 5, Patented Apr. 13, 1915.

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THE NORIEIS PETERS CO-. PHOTC-LITHQ. WASHINGTON. D- C4 l. KARISH.

EXTENSION TABLE.

APPLICATION mso JULY 13, 1912.

1,135,1 15, Patented A r,13, 1915.

4 SHEETS-SHEET 4.

7 wfz'inexydefl" 5227612 for- (/Zmw z ZSQZQGEJ'JLYA- TH: NORRIS PETERS CO. PHOTO-L: THC WASHINGTON, D. C.

STATES rATEN GFFICE.

ISAAC KARI SH, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF-IO TODRESS NAKTIN,

OF CHICAGO, ILLINOISL EXTENSION-TABLE.

Specification of Letters zIPatent- (i Patented Ap 13 1915 Application filed July 13, 1912, Serial No. 709,278.

To all whom it may concern:

' Be it known that I, ISAAC KARISH, a subprovement in Extension Tables, of which the following is a specification.

The object of my inventionis to improve the means by which the movable leaves are supported within the table, are automatically raised by the extension of the table, and the adjustment of the leaves in position between the main parts of the table when extended. I

The manner inwhich LI accomplish my object is described in the following speclfication and illustrated in the accompanying drawings in which 7 V Figure 1 is a side elevation the 'legsbeing broken away, the table extended, and leaves raised to the highest level ready for adjustment between the ends of the .table. Fig. 2,,

is a cross section on the line 22 Fig. 1.

. Fig. 3, is a sectional detail on the line 3-3 Fig. 2.' Fig. 4, represents two views of a Fig. 5, is a plan of the parts and 40. the center leg inclosed'within the leg 15,

' 17 and 18.

their positions shown in Fig. 1. F ig. 6, is a planof thetable and one of the leaves in' position for the closing ofthe two ends into Contact with the leaf. Fig. 7', is a vertical cross section on the line 7+7 Fig.6. Figs. 8, anjd 9, are front and side elevations of guide rolls and support. Figs. 10 and 11 are details of the leaves of'the table and their relative position for adjustment. Fig. 12, is

a detail, showing part of the lever mechanism. Figs. 13, and 14, are details of the rack mechanism.

In the drawings 15 indicates the two halves of the mainsupporting leg and 16 when the table is closed. Fixed on each half of the leg 15 are the transverse supports Secured to these supports are vertical blocks 19. Secured on these blocks a-resemi-circular parts 20 and 21 which form the main top of the table. Each of these parts consists of a ring portion 20 and 21 and tops 20 and 21".

Rigidly'fixed to the underside of the top 20 are guide rails 22 having an outside dovetailed tongue 22*. Fixed on the underside of the table top 21", and on the blocks 19, are rails 23 having an inside dovetailed tongue 23 Fixed on the top of the leg 16,

extension connections of the table.

ably engaged. These rails form the slidable Su ported on one side of the support 24, is a shaft '28. Fixed on this shaft is a gear 28 Above the shaft 28, and parallel with it, is a short shaft 29, on whichjare two gear wheels 30, one of which is meshed with the gears 28? on the shaft 28. Meshed with the gears 30 are parallel racks 31, and 32. One end of the rack 31 is fixed on the support 17 and the end of the rack 32 is fixed on the support 18; Those parts of the racks in engagement with the gears are slidably held meshed with the gears by bearings secured on the support 24. The rotation of the shaft 28, gears 28, and 30, move the racks in opposite directions and thereby force the portion 20, and 21 of the table apart and the reverse movement draws them together. Fixed transversely on. the support 24, are two parallel rails 33, and34. Secured to these rails -with the hinges 35 and 36, and each rod has an arm 37, and 38 Pivotally attached to the arms 37 and 38 is a connecting bar 39. Pivotally attached to this bar is an arm 40. This arm is secured toa rocker bar 41, which is pivotally I supported in the support 24. This bar extends parallel with the rack 31, and between'the rolls 42, which are rotatably supported in the bearing plates 43 attached to the part 17. The portion of the bar 41 which passes between the rolls 42, is flat, and the end portion 41 is twisted. As the twisted part is moved back and forth through the rolls by the opening and closing of the main parts of the table, the rod 41 is partly rotated, and the arm 40, connecting bar 39, and rocker rods 37,-and 38, are actuated and the hinges 35 and 36, are raised and lowered. Pivotally secured to the hinges 35 and 36 are half leaves 44. These half leaves are supported in a raised position by said hinges and by the rails 23. Pivotally secured in one end of each of these half'leaves 44, are two links 45, shown in Fig. 4. Slidably connected to the half leaves 44, by these links are half leaves 46. On the under side of the lea-ves' lti, are two longitudinal parallel T shaped channels Hf-shown in Fig. 3, in which the T ends 48, of the links 45 are slidably engaged. The travel-of these linksin said channels is limited by stops 49. By this means onehalf &6.of each leaf is slidably supported on the other half. A and. guided into the open and closed positions. In the open position, the half 44; leaves rest on the hinges 35 and 36 and rails27. In the closed position the half leaves 46 rest upon the half leaves 4:4, and the leaves4=4= rest on'fthewhinge oints hired on the railsl33 and 34 'as shown in Fig.7.

Whenthe several parts are constructed. and connected as described their operation is as follows :W hen the table is Closed to form a round table the table'leaves are sup? ported between the table tops 20 and'v2l as bar'is turned' in proportion to the degree of' the twistyof the bar. This turn of; the bar takes place when thejends of the-table 20 and 2lare separated'suificiently toallow the leaves to be raised betweenlthem askfollows:

' As the bar :41 is turned as described, the arm is moved from the position shown inFig;

.12 to th e position shown ;in Fig; 2, and can,

.- rieswith it theconnecting'bar 39, arms 37?,

and 38, "thereby partly rotating the rods 37.

, and 3,8. This-movement of these rods raises the radial arms .37 .and 38 and hinges 35 and 36 from the position shown'in Fig. 7

' to theyposition shown .in Fig. In this the level of the table top and carry them over to one side'to the position shown in Fig. 2 where they rest on the rails 22, 23, and 27. .The top leaves are then moved by the hand'alongthe top of the lower leaves tothe position shownin Figs. 6 and 10. In this movement .of those leaves the heads 48 of the links 45,. travel in the channelsi7 until the ends 46? of the leaves fall against the beveled ends i-Pof the lowe r leaves, and rest on the-ends 44: hinges, and rails'22, 23 and 27 The parts 20 and 21 are then closed against the leaves bythe reverse movement of the shaft 21. In thisreverse movement through the rolls and thereby returns the connected lever part back to their normal position shown in Fig. 12. The leaves and hinges. are thereby freed from contact-with those parts{ To move the leaves for closr v 1,135,115 a thereby returned to the first position below be l-raised .fbyjhand' and placedfiin; position and that 'the lifting mechanism is actuated to each otherin such manner as"ioi permita sections, mechan isms operating to'move'said movement the hinges lift the leaves above" the twisted end of the bar flpasses back ing the-table, the leaves lare onto" the op of the le v s t elt erposition 7 shown in Figs. 2 and 11 to the position shownin Fig. 7, and then'both leaves together' are pushed from the side position to thecenter where they. fall together w'iththe f hinges as shown inFig; 7,. The. leaves are the table topfthe parts 20 and 2l"are.then* closed by means of theishaft 28,- and.,allpartsarein th norma'l position fora;-

table as'ldeseribed.

- It'is obvious thaton ormore leaves a only When the table ;is extend limit. ,What I'cl'aimis 1. Anexten'sion tablefdniprisin of table leaves formed transverse apaand normally ,c'oncealed'. be atli fate top when the 'lattergis' inicloseid pjo tlOIl, the Sections ,Of saidfl'e'av'es being able longitudinally (one; upon ;anothe 7 nd 7 means forjjelevating saidfleavesinto positionfor use. i '2. An extension tablefeomprism a s ies of table leaves. formed transversely in sec.-. tion and vnormally concealed i'h'e'neath' the .table topwhe'n thelatteris "inclesedp'osie tion, the sections of said-.leaVes-beingfhinged tended, table "I av s' suitahlyTnion horizontal. position beneath" Tsaid itablef .tdp

- 4:. 'In'a device of the 'lassde'scriheda':

tional table top; a central support there comprisingafdividedleg, ea'ch z-section jof' which is adaptedto move withia respective. section of the table top, .ajsectibnat table leaf with i the sections resting horizontally; on upon another fa'ce upwardly and .nolrmall retained in position beneath the -tahIe'top, sections whenthesame are'closed, and 'mechlanism for elevating saidrsectional' leaf into position to permit positioning of. thesaine' between the table top sections when thesame f i are moved apart without inverting. the leaf sections and maintaining the same inEahori zontal plane in all positions of adjustme'n 5.,Ina device of the class describeda'ieen trall'y supported table, sectional leaves'fc'on' tained beneath the top thereof when the table top to project said leaves upwardly same is in closed position, one supporting into position to permit extension of the same 10 the other thereupon when in position out of when the device is opened.

use, the sections of said leaves siidable one upon another, to permit extension thereof IKE KARISH. Without rotation of the sections, hinges con- Witnesses:

nected to the lowermost of said leaf sections THOMAS J. MORGAN,

and to the table and means connected to the GUSTAVO T. FRAENCKEL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. O. 

